Irrelevant Interactions without Composite Operators - A Remark on the Universality of Second Order Phase Transitions

Christoph Kopper, Walter Pedra

We study the critical behaviour of symmetric ${\varphi }_4^4$ theory including irrelevant terms of the form ${\varphi }^{4+2n}/{\Lambda }_0^{2n}$ in the bare action, where ${\Lambda }_0$ is the UV cutoff (correspondi…